Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1448441 > unrolled thread

Re: [PATCH] i2c: bcm2835: Set up the clock stretching timeout at boot.

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [PATCH] i2c: bcm2835: Set up the clock stretching timeout at  boot. Wolfram Sang <wsa@the-dreams.de> - 2016-07-22 09:30 +0200

#1448441 — Re: [PATCH] i2c: bcm2835: Set up the clock stretching timeout at boot.

[Multipart message — attachments visible in raw view] — view raw

On Sun, Jul 03, 2016 at 06:02:32PM -0700, Eric Anholt wrote:
> Wolfram Sang <wsa@the-dreams.de> writes:
> 
> >> +	/*
> >> +	 * SMBUS says "Devices participating in a transfer will
> >> +	 * timeout when any clock low exceeds the value of
> >> +	 * T_TIMEOUT,MIN of 25 ms."
> >> +	 */
> >
> > SMBus has that timeout, but I2C doesn't. How about disabling the timeout
> > simply? Or using the max value if you want to keep the timeout
> > detection?
> 
> Disabling the timeout seems fine to me.  We still have a 1-second
> timeout around the entire transfer.  I'll be back on my DSI branch this
> week and test it out then.

Did it work?

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web